Stop mechanism



May 10, 1932.

, C. BRAHY STOP MECHANISM 2 Sheets-Sheet Original Filed Oct. 8, 1929 C.BRAHY STOP MECHANISM May 10, 1932.

Original Filed Oct. 8, 1929 2 Sheets-Sheet 2 INVENTOR 07667265 ,57a7zATTORN E Y per switch and tripping mechanism consti- Patented May 10,1932 UNITED STATES CHARLES BRAI-IY, OF STATEN ISLAND, NEW YOBK, ASSIGNOROF NEW YORK,'N. Y.

'ro cmmnns n MARION,

s'ror mnomxsm Original application filed October 8, 1929, Serial'No.398,162. Divided and this' applieation filed September 19, 1930. Seria1No. 483,039.

"This application is a division of my application for automatic liquidfuel dispensers filed October 8, 1929, Serial No.398,162, the scope ofthis application covering improvements in mechanisms to effect thestoppage of operation of the apparatus to which this invention isattached.

An object of my invention is to produce a mechanism that willautomatically terminate the cycle of operation of a machine,particularly one actuated by rotary driving means, such as the liquidfuel dispenser described in the above referred to parent application ofwhich this is a division. Another object is to provide remote controlstoppingmeans, so that where the operation of a machine is controlled byremote means, as in the case of the pump and coin control mechanismdisclosed in the said parent application, the machinewill be caused toactuate the control mechanism at the end of its cycle of operation tobring about a stoppage of the apparatus. A further object of thisinvention is to provide a vapor proof construction for such electricalparts as may be subjected to sparking, so as to eliminate the danger'ofexplosions dueto the ignition of combustible vapors, such asgenerally aboundin the vicinity of'gasoline stations. Other objectsandfeatures will appear from the drawings, and the description hereinaftergiven. I Referring to the drawings:'

Figure 1 is a fragmentary and partial sectional elevation of'the circuitbreaking triptuting part of my invention.

uated by the mechanism shown iriFi'gure 1 and which isattached to themechanism for starting and stopping the machine to which this inventionisattached.

Figure 3 is a front sectional elevation of an automatic liquid fueldispenser, showing the generaljarrangement of; the apparatus embodyingthe stopmechanism constituting my invention.

In thedrawings, the casing contains the coin control mechanism, and thecasing 11 the rotary driving'means for actuating the ma chine, in'this'case the liquid fuel pump 12.

machine;

Renewed October 5, 1931.

Mounted within casing 10 is the panel 13, to

which is attached the coin chute/.14, under the opening 15 of which isthe temporary operation. The parentapplication of which thls is adivision contains "a complete descrip-v 7 tion of the mode of operationand of the coin control mechanism, and'hence a detailed descriptionthereof will not be repeated here. It should be observed, however, thatafter the coin is deposited and during the entire cycle of operation ofthe machine, the coin 9 remains within the said receptacle 16, untilthestop mechanism constituting my inventioncauses this receptacle toswing farther down untilthe coinis caused to drop through the chute 17into the coin box 18. This operation, which will be hereinafterdescribed, re-

sults in the breaking. of the motor actuating circuit and intheconsequent stoppage of the The casing 19 contains the circuit breakingsolenoid 20, the core 21 of which is connected with the stem 22 throughthe coupling 23, Within the casing 11 is thedriving means orgear wheel25 to which is connected the pump connecting rod 26 and the tripping cam'27. v a

. Mounted on the casing ll' is the bracket 28 which contains the tripperswitch for setting'intomotion the circuit breaking mecha-f nism'. Thelever 29, pivotallyconnected at 30, carries the roller 31 whichisengageable with the surface ofthe tripper cam 27 Pivotal- "ly attachedto the'lever 29 isthe rod 32,- the helical spring 33 being mountedthereon and fixed thereto at 24. The rod132 is pivotally attached tolink35 which is mounted on shaft 36. Connecting the ends of rod 32 and thecontactbearing lever '37 is the spring 38, the said contact lever havingthere'on'the' protruding'element 'or finger 39 adapted to engage thelink 35, and the contact point 40 adapted to come into abutment with thecon- ,tact41.

When a coin is deposited intothe'coin de posit slot e2, it drops downthrough the coin chute l lfa'nd into-the temporary coin receprevolution2 thereof I when a fueldispensing cycle has been completed,- the surface47 oi the tripper cam 27 will strike the roller 31 and cause a clockwisemovement ofthe lever" 29 around its center 30, thereby producingiamovement of the rod32 in the direotionofl the arrow against theaction'of spring 33.' This movement. is-..transmitted. through thespring 38 to, thelever-3Z, resulting in: the

contactingof: points-4E0 and 41.. This. closes thecircuit throughthesolenoid 20,..as a result of Which. the. core: 21. isdrawn down,carrying with it, against the action of spring 48,.the stelrr'22; Thismovement of stem 22 is transmitted to the receptacle. 16 which isthuswcausedrto. continueonits downward swing to drop. the coin" throughvchute 17 into v the coinbox .18.

After the roller 31 passes over'the apex 4-9, the lever 29'. will movein a counterclockwise direction andcause the rodL32 to move to theright, so that the link. 35. will engage thefinger .39 and cause-aclockwise movement of the IeverBZ, thereby separating the contacts d0and 41. This. breaks the. circugitthrough solenoid 2'0, permitting thespring 48 to move thestem22upwardly and back to its starting position.This upward movement isrtransmitted to the. receptacle. .16. whichwiscarried back to its starting position by certziinbalancing.mechanisms-fully described in-the above mentioned. parent application.The returnof the receptacle I6 is accompanied. by

a .disengagement;of the. contactszeii and 44, whereby the motoractuatingcircuit is broken and the gear wheel caused. to stop.v

It will be noticed that the coin control and motor actuating mechanismare contained within. casings. 10. r and. 19,; whereas the pump drivinggear 25 is housed within a separate and; remotecasing l1. In'this waystoppage canbeeefl ectedby remote control means, thereby providing. a;flexibleand sate ap aratusfi i notherfeature ofthisinventionis thevaporproof housing-around such electrical v parts as. may be subjected tolsparking, so as to. remove the danger of combustible gases such'asgasoline. vapor fromthe .pumpenvelopingthe control points, withconsequent danger. otexplosionsi Thus the: casing 50 I whichcontains.theacontacts- 40 and .41 has no free. and exposed openings.through which v combustible vapors can enter. I

T heparticularfo-rmof: apparatus disclosed inthe drawi-ngs and, inthez'description here- F fingiven,constitutesbutbneof severaldifierentmechanical forms that can be embodied in my invention.

What I claim is:

1. A stop mechanism comprising, in combination, a camsecured to rotarydriving means, a lever operable by. said cam, a rod operable by saidlever, a second lever, two adjacent contact points one of which iscarried by said second lever, said'rod being provided with a yieldableconnection to said second lever, electro-mechanical means electricallyconnected with said contact points and provided with a movable elementattached to motor-actuating' means, means'to keep said contact pointsnormally disengaged, and

means: to bring said contact-points into temporary abutment so asto-momentarily close the circuit through said electro-mec'hanical meansto actuate said movable element 2. A stop mechanism comprising, incombination, a cam secured to rotary driving means, a lever operable bysaidficam, a. rod pivotally connected to said lever; a second lever, twoadjacent contact points one of which is carried by said second lever,vsaid rodbeing: provided. with a yieldableconnection torsaid secondlever, yieldable means operable upon said rod and second lever so astonormally keep said contact points disengaged, saidcam beingadapt'ed.to actuate said first mentioned: lever against the action a of saidyieldab'le means-soas-to: cause the contacting-jot said points,aamember' pivotallly attached to said rod and operable upon said secondlever to: cause the disengagement of saidcontact points, andelectro-mechanical means electrically connected with said contact pointsand provided with a movable. element attached tomot'or-actuating means;

' 3. In a stop mechanismaa brackethaving thereon: a housing, a lever,two adjacent contact points one of which is carried by said lever, saidlever and points being-enciosed said housing, a rod: slidably'extendingthrough. a holein said casing, said "rod being provided with a yieldableconnection-to said lever, yieldablle means coacting with said rod andlever to keep said points normally disengaged, means operable upon" saidrod to bring said points into engagement, and a member connected to saidrodand operable upon said lever to cause the disengagement of saidpoints.

4. In a stop mechanism, a lever, two adjacent' contact points one ofwhich is car ried by said lever, arod'provided with a yieldableconnection to said lever, yieldable'means coacting with said rod andlever to keep said points normally disengaged, means operable upon saidrod to bring said pointsi'nto. en-

- gagement, said. lever being. provided with a protrudingelement, and amember connect ed tors-aid rod and engageable with; said. ele ment andcooperab-l e therewith and WllihcSaid lever so as to cause said pointsto become disengaged.

5. In a stop mechanism a lever provided with a protruding elementthereon,a pair of cooperable contact points one of which is carried bysaid lever, means operable upon said lever to bring said points intoabutment,

a member engageable with said protruding element and cooperabletherewith and with said lever to cause said points to become disengaged,and means to actuate said member.

6. In a stop mechanism a lever pivotally mounted on a shaft and providedwith a protruding element thereon, a pair of coopv erable contact pointsone of which is carried by said lever, a rod provided with'a yieldableconnection to said lever, a member one end of which is pivotallyconnected to said rod, the other end being mounted on said shaft, meansoperable upon said rod and said lever to bring said points intoabutment, the said member being engageable with said protruding elementand cooperable therewith and with said lever to cause said points tobecome disengaged.

7. In a stop mechanism, driving means, a lever, a pair of cooperablecontact points one of which is carried by said lever, intermediate meansyieldably connected to said lever and adapted to effect the successiveengagement and disengagement of said points,

said lever having thereon a protruding element, a member engageable withsaid element and cooperable therewith to cause said lever to move to aposition where said points are disengaged.

8. In a stop mechanism, a cam secured to driving means, a lever, asecond lever, a pair of coacting contact points one of which is car riedby said second lever, intermediate means yieldably connected to saidsecond lever and adapted to eflectthe successive engagement anddisengagement of said contact points, the

said cam and first mentioned lever coacting to operate said intermediatemeans, a bracket, a housing positioned on said bracket and containingsaid second lever and said contact points, the said first mentionedlever being pivotally attached to said bracket.

In testimony of which I aifix my signature.

CHARLES BRAHY.

